Improvement in gas-stoves



LESLEY & CRAIG.

Gas Stove.

'- Patented Jany 30,1866.

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ALEXANDER M. LESLEY, on NEW YORK, AND WILLIAM CRAIG, on BROOKLYN, N. Y.

HVI PROVEMENT IN GAS-STOVES.

Specification forming part of Letters Patent No. 52,300, dated January30, 1866.

To all whom it may concern:

Be it known that we, WILLIAM CRAIG, of Brooklyn,in the county of Kingsand State of New York, and ALEXANDER M. LESLEY, of the city, county, andState of New York, have invented or discovered certain new or usefulEffects Produced in Gas-Burning Stoves; and we do hereby declare thefollowing to be a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, figures, and letters ofreference thereon, making part of this specification.

Of the said drawings, Figure 1 is a perspective view of our gas-burningstove. Fig. 2 is avertical sectional View of the same. Fig. 3 is ahorizontal section taken through the line A B.

Similar letters of reference indicate like parts in all the drawings.

()ur invention relates to the application of a current of steam aroundor in connection with a flame of gas for heating purposes.

To enable others skilled in the art to make and use ourinventiomwe willdescribe the construction and operation thereof.

A represents the cylinder of a gas-stove, which is bolted to a base, B,and cap, 0. The base B is perforated, and the top 0 is open for securinga proper draft of air. In the cylinder A we insert a steam-generator, D,which is held in place by pipes to I), one of which pipes, a, is forfilling the boiler D with water, while the other, I), is theinduction-pipe and burner for the gas.

E is a cylinder, the lower end of which is open and rests upon the baseB, while the other end is fitted with a finely-perforated sheet orsieve, l. On top of this sheet l is a circular plate, 70, around thecircumference of which the gas rises to heat the boiler D. In the bottomof the cylinder a pipe, d, is placed, which has a short elbow, m,through which gas passes into the chamber of the cylinder E by the cock6, and passes upward, assisted by the draft of air, through theperforated plate Z.

To the boiler D a tube, a, is attached, as shown in Fig. 2, which passesdown the cylinder A and into the chamber of the cylinder E, forintroducing steam to force the flame of gas up against the boiler D. Inthe top plate of the boiler D we cut a hole for a conical tube, 0, (seedotted lines, Fig. 2,) which tube is inserted before the top or cover ofthe boiler is made fast. The lower end of the cone is perforated or cutaway near the bottom for Water to pass. The bottom of the cone restsupon the boiler-bottom, and the cone is secured to the boiler-topsteam-tight.

The boiler D is filled with water through the pipe at on the outside ofthe stove. the plane of this pipe being considerably lower than the topof the boiler for steam-room. The end of the pipe bis plugged and a rowof holes made just below the plug for the gas to pass through. The gasis then taken from the pipe h, which communicates with the pipes d andb, by the pipef and coupling g, and the flow of gas is regulated by thecooks H. The gas is then lighted at the pipe 112, and rises to theboiler and generates steam, which will pass from the boiler, through thepipe at 0, into the chamber of the cylinder E, and force the flame ofgas with increased effect upon the boiler, thereby making steam rapidly.The gas is then lighted in the pipe b, and, passing through the cone 0,is forced upward by the steam generated inside the cone 0 and the draftof 'air which passes up through the cylinder A. The steam rising upthrough the cone expands the flame of gas and produces more perfectcombustion and greatly-increased heat. The steam-pipe a 0 being alwaysheated from the gas below before steam is made, no trouble can arisefrom condensation, and as the end of the pipe at 0 is always open noaccident or injury can arise from steam or low water.

We claim The combination of a current of steam with a flame ofilluminating-gas and a supply of air, substantially in the manner hereindescribed and specified.

ALEX. M. LESLEY. WM. CRAIG. Witnesses:

O. A. DURGIN, EDWARD OsBoRN.

